Logic · LIGHTS
Diagonal Lights
Toggle the chosen light and its diagonal neighbours.
Setting out the board…
Toggle the chosen light and its diagonal neighbours.
Checking saved data…
PLAYFIELD BUILD NOTES
Why this variation is here
This logic variation is authored to make one rule visible at a time. The board state is deterministic for a round, and the shell keeps undo, restart, and keyboard focus close to the decision.
Source
Playfield-authored code and local assets.
Controls
Keyboard and touch instructions are shown above the game.
Data
Progress stays in this browser; no account is required.